I just got the VTR and I like it, I have tried the mvp and it is good too. The reason I chose the vtr is because it goes to 15 watts with a 5 amp limit and kt has the ability to sub ohm. This is great because the coils I lime to build are 1.2 to 1.5 ohms but sometimes they can fall slightly short of that resistance. It sucks when you build a coil that is 1.1 ohm and cannot fire, the vtr will fire those coils. It is a great replacement for my vamo which I thought was heavy but this vtr is really HEAVY! The vtr is also a brutal fingerprint magnet whereas the mvp is not. If you don't mind the fingerprints and weight, it is great. The vtr comes with an iclear 30s which I've used before I got the vtr and it works good. 2 months ago I would have said any protank but I've had no success with their replacement coils lately.